BillionToOne, Inc. Class A Common Stock — Institutional Ownership

Which tracked institutions hold BLLN, and how they changed the position last quarter. Latest holdings as of Mar 31, 2026. Source: SEC 13-F filings.

15
Funds holding
$48527411
Total value held
Buying
13 added/new · 2 reduced
# Institution Value Shares Δ Shares Change (QoQ)
1 Ameriprise Financial Inc $17369563 220035 +97762 +79.95%
2 Invesco Ltd. $15534787 189819 NEW BUY
3 Blackrock, Inc. $7511930 95160 +23760 +33.28%
4 Nomura Holdings Inc $2486610 31500 NEW BUY
5 State Street Corp $1555118 19700 -1900 -8.80%
6 Sei Investments Co $1057717 13399 NEW BUY
7 Bank Of America Corp /De/ $1003091 12707 +12561 +8603.42%
8 Morgan Stanley $993539 12586 +8987 +249.71%
9 Royal Bank Of Canada $377000 4770 NEW BUY
10 Goldman Sachs Group Inc $328233 4158 -16557 -79.93%
11 Barclays Plc $217717 2758 NEW BUY
12 Wells Fargo & Company/Mn $76357 933 NEW BUY
13 Fifth Third Bancorp $10615 134 NEW BUY
14 Us Bancorp \De\ $5052 64 NEW BUY
15 Citigroup Inc $82 1 NEW BUY

Aggregated across tracked institutional filers. Reported quarterly on SEC Form 13-F and may lag. For research only — not investment advice.